Graphically rich...but lacking in the most basic features and mediocre gameplay compared to other versions of Tetris.
As a background, I have almost every version of Tetris that's ever been released. On Switch right now...the best version of Tetris for 1-2 players is Tetris the Grandmaster (which is a port of an arcade game).
Of all versions on any system, the NES and SNES (Tetris and Dr Mario) are the best 2 player versions (Tengen or the rom Hack of the original NES - called "Tetris VS" to make it 2 player). The best 4 player version is Wii Tetris Party.
The only area Tetris Effect could possibly excel is in single player modes and graphics and if you are someone that likes some of these more obscure variants..but in my opinion graphics are not really that important for a Tetris game. Gameplay is king.
Inexplicably Tetris Effect doesn't have any normal 4 player local version of Tetris, either classic or modern while including all these bizarre variants.
The 2 player classic mode is okay but not as good as Grandmaster or NES or SNES.
On Tetris Effect the only 4 player modes are weird team vs computer and other random or weird "connected modes". Our friend group didn't like any of these 4 player local modes.
Amother thing that is annoying is that you have to zoom in on the screen when each round starts. It starts kind of zoomed out. While I appreciate customisation in theory of how far zoomed in or out you can be...this just becomes one more thing to think about and manage. It should just be set at the maximum zoomed in where you can still see everything. It's not a huge deal but is the kind of thing that should be disabled by default in settings and could be enabled if someone wanted it for some reason.
Overall Tetris Effect adds all these flashy graphics and its ironic that Wii version thats less than 100mb has the better 4 player mode and is overall better gameplay and is the better game. I appreciate they added a 2 player classic mode, but its just not as good as the actual versions on NES or SNES.
Because of this we just play the Wii Tetris Party instead 4 player and the NES or SNES version on Wii U for 2 player or Tetris Grandmaster on the Switch.
If the developer is reading this.... please add 4 player classic and modern Tetris mode where a Tetris punishes the other player (s) and fix some of these problems.
I can only recommend this if you want to play solo. The 2 player mode is serviceable but not the best and the 4 player modes are just kind of all glitz or gimmick and no substance.
Disappointment overall...also the overall vibe is very New Age with meditating figure's and stuff. Not my deal but could overlook it if there was good 4 player gameplay.
Hopefully an update will add these basic features since the graphics are way better than previous versions. It was just a disappointment unfortunately. I am hopeful that they may eventually add these 4 player features but until they do save your money and don't get this game.